Description of problem: We have a 20 node gluster setup where we are facing the locking issue with 1 node only i.e rhs01. Whenever a gluster command is run on rhs01, it says "request time out". But other nodes gives proper response. We tried to restart the glusterd on rhs01 & rhs07(where from logs it is saying staging failed ) but with no luck. You can find full logs here http://collab-shell.usersys.redhat.com/01869975/ Snippet from the logs : When volume status is run on rhs01 node it says below error : ~~~ [2017-06-20 11:31:35.182542] E [MSGID: 106116] [glusterd-mgmt.c:135:gd_mgmt_v3_collate_errors] 0-management: Locking failed on rhs07. Please check log file for details. [2017-06-20 11:31:35.182620] E [MSGID: 106151] [glusterd-syncop.c:1868:gd_sync_task_begin] 0-management: Locking Peers Failed. [2017-06-20 11:32:35.237627] W [glusterd-locks.c:577:glusterd_mgmt_v3_lock] (-->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_op_begin_synctask+0x30) [0x7fbe9f0530c0] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(gd_sync_task_begin+0x980) [0x7fbe9f052ff0] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_mgmt_v3_lock+0x5f7) [0x7fbe9f0577e7] ) 0-management: Lock for commvault held by c7547ec0-574e-456b-a274-f55b0927b32f ~~~ Meanwhile rhs07 record below error : ~~~ [2017-06-20 11:31:35.182297] W [glusterd-locks.c:577:glusterd_mgmt_v3_lock] (-->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_op_sm+0x29f) [0x7fac3509acaf] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(+0x65ab5) [0x7fac3508cab5] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_mgmt_v3_lock+0x5f7) [0x7fac3512c7e7] ) 0-management: Lock for commvault held by c7547ec0-574e-456b-a274-f55b0927b32f [2017-06-20 11:31:35.182424] E [MSGID: 106119] [glusterd-op-sm.c:3713:glusterd_op_ac_lock] 0-management: Unable to acquire lock for commvault [2017-06-20 11:31:35.182473] E [MSGID: 106376] [glusterd-op-sm.c:7596:glusterd_op_sm] 0-management: handler returned: -1 [2017-06-20 11:31:35.183417] E [glusterd-op-sm.c:7577:glusterd_op_sm] (-->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_big_locked_handler+0x30) [0x7fac3507e770] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(+0x128bc8) [0x7fac3514fbc8] -->/usr/lib64/glusterfs/3.7.9/xlator/mgmt/glusterd.so(glusterd_op_sm+0x37f) [0x7fac3509ad8f] ) 0-management: Unable to get transaction opinfo for transaction ID :15611444-8d18-437e-aa5c-f858fa265097 ~~~ Version-Release number of selected component (if applicable): Red Hat Gluster Storage 3.2 How reproducible: Reproducible at customer env. Actual results: gluster volume commands ran from a node(rhs01) give "request time out" Expected results: Gluster volume commands should run without issues. Additional info: